A locked laptop is frustrating, but it is never truly dead. With the right utility—software or hardware—you can revive your EliteBook 840 G3 and get back to work.
Unlike consumer laptops, the EliteBook 840 G3 stores its BIOS password on a dedicated EEPROM chip rather than in volatile CMOS memory. This means that cutting power or removing the internal battery will only reset the system clock, not the security credentials. 1. HP SpareKey Recovery --- Hp Elitebook 840 G3 Bios Password Reset Utility
While no "official" downloadable utility exists to bypass security on these units, some users utilize third-party code generators if the system displays a "System Disabled" code. A locked laptop is frustrating, but it is never truly dead